Home / 199,896.12-275,868.72-115,011.36

Finding the Fourth Proportional to 199,896.12, 275,868.72 and 115,011.36

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Solution

The fourth proportional to 199,896.12, 275,868.72 and 115,011.36 is: 158,722.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,896.12 : 275,868.72 = 115,011.36 : x
  2. Step 2: Convert to fraction form
    199,896.12/275,868.72 = 115,011.36/x
  3. Step 3: Cross multiply
    199,896.12x = 275,868.72 × 115,011.36
  4. Step 4: Simplify right side
    199,896.12x = 31,728,036,668.66
  5. Step 5: Solve for x
    x = 31,728,036,668.66/199,896.12
  6. Step 6: Final answer
    x = 158,722.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.